REISERFS warning (device loop7): super-6504 reiserfs_getopt: the option "nolargeio" requires an argument ------------[ cut here ]------------ kernel BUG at drivers/vhost/vhost.c:1652! invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 7787 Comm: syz-executor6 Not tainted 4.16.0+ #17 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:set_bit_to_user drivers/vhost/vhost.c:1652 [inline] RIP: 0010:log_write+0x42a/0x4d0 drivers/vhost/vhost.c:1676 RSP: 0018:ffff8801aa67f920 EFLAGS: 00010212 RAX: 0000000000040000 RBX: dffffc0000000000 RCX: ffffc900040e1000 RDX: 0000000000000417 RSI: ffffffff85978eea RDI: 0000000000000005 RBP: ffff8801aa67fa58 R08: ffff8801cbac0600 R09: ffffed003146059d R10: ffff8801aa67fad8 R11: ffff88018a302cef R12: 0001ffffffffffff R13: ffffed00354cff36 R14: 0000000000000000 R15: ffff8801aa67fa30 FS: 00007f0e26c47700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000207cb000 CR3: 00000001d0e91000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vhost_update_used_flags+0x3af/0x4a0 drivers/vhost/vhost.c:1723 vhost_vq_init_access+0x117/0x590 drivers/vhost/vhost.c:1763 vhost_vsock_start drivers/vhost/vsock.c:446 [inline] vhost_vsock_dev_ioctl+0x751/0x920 drivers/vhost/vsock.c:678 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x1cf/0x1650 fs/ioctl.c:684 REISERFS warning (device loop7): super-6504 reiserfs_getopt: the option "nolargeio" requires an argument ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 SYSC_ioctl fs/ioctl.c:708 [inline] SyS_ioctl+0x24/0x30 fs/ioctl.c:706 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x455279 RSP: 002b:00007f0e26c46c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f0e26c476d4 RCX: 0000000000455279 RDX: 0000000020f82ffc RSI: 000000004004af61 RDI: 0000000000000014 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000351 R14: 00000000006f8038 R15: 0000000000000000 Code: e8 6c ae df fb 4c 89 ef e8 14 4f 01 fc 48 8d 85 58 ff ff ff 48 c1 e8 03 c6 04 18 f8 e9 46 ff ff ff 45 31 f6 eb 91 e8 46 ae df fb <0f> 0b e8 3f ae df fb 48 c7 c6 a0 1f 25 88 4c 89 ef e8 c0 e3 0b RIP: set_bit_to_user drivers/vhost/vhost.c:1652 [inline] RSP: ffff8801aa67f920 RIP: log_write+0x42a/0x4d0 drivers/vhost/vhost.c:1676 RSP: ffff8801aa67f920 ---[ end trace 438796f91c6c392d ]---